What powers visplzen.cz?
Last seen Aug 2026 · 26 technologies across 18 categories
Analytics
Google Analytics
since Jan 2019
Hotjar
since Aug 2022
Caching
WP Rocket
since Feb 2023
CDN
CMS
WordPress
since Feb 2023
Databases
MySQL
since Feb 2023
JavaScript libraries
jQuery Migrate
since Feb 2019
Miscellaneous
Open Graph
since Feb 2023
PWA
since Feb 2023
Operating systems
Windows Server
since Jan 2019
Page builders
WordPress Block Editor
since Aug 2024
Performance
Priority Hints
since Aug 2024
Programming languages
PHP
since Feb 2023
Rich text editors
Tag managers
Google Tag Manager
since Feb 2023
UI frameworks
Web frameworks
Microsoft ASP.NET
since Jan 2019
Web servers
Webmail
Microsoft 365
since Aug 2022
WordPress plugins
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 55% phone
- 45% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.09 / 10 · ranked #509,049 of all domains
19 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.8 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech (Czechia)
- Weight: 1.0 MB · 26 requests
- WordPress theme: dootheme · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on BLUETONE-AS The Czech Republic (82.99.180.77)
- DNS: dialtelecom.cz
- Email: Microsoft 365
- Email security: SPF (hard fail), no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 12,621,298, 11 hosts
- Verified with: Google, Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| web.visplzen.cz | 14 |
| dispecink.visplzen.cz | 7 |
| mujvis.visplzen.cz | 7 |
| oldweb.visplzen.cz | 7 |
| webinare.visplzen.cz | 7 |